Description:
- 3.5" tall x 2" wide
- 3/8" wide wire groove
- Mold line over dome
- Does not fit a standard pin
A page from a Gould & Watson Company undated catalog (shown above) describes this insulator as a trolley line insulator. The indication that it had a "heavy screw thread" explains why it does not fit a standard pin. Insulators moulded by the company were manufactured under the following U.S. patents:
- 308,778
- 386,925
- 389,519
- 409,985
- 409,986
- 411,384
- 411,749
- 413,146
- 428,979
- 433,284